Milling machine



G. D. SUNDSTRAND.

MILLING MACHlNE.

APPLlcMmn FILED MAY a. |919.

1 ,425,7 1 7. Patented Aug. 15, 1922.

2 SHEETS-SHEET 1.

/97 M CW/u G. D. SUNDSTRAND.

MILLING MACHINE.

APPLICATION FILED MAY 3, |919.

1,425,717. Panama Aug. 15, 1922.

2 SIIEES-SI'IEET 2.

E thereto.

UNITED STATES PATENT OFFICE@ GUSTAF DAVID SUNDSTRAND, OF ROCIFORD, ILLINOIS, ASSIGNOB TO ROCKFORD MILLING MACHINE COMPANY. OF ROCKFORD, ILLINOIS. A CORPORATION 0F ILLINOIS.

MILLING MACHINE.

Application tiled May 3, 1919.

T0 all fL11/1,0m t 711.04/ concern:

Be it known that I. GIF-STAP Divin SUND- STRAND, a citizen of the UnitedStatesresiding at Rockford, in the county of Winnehago and State of Illinois, have invented certain nee ami useful Improvements in Millingr Machines. of which the following is a specification.

My invention relates to milling; machines and more specifically to a vertical milling attachment for .such machines. l

One of the objects of the invention'is to provide a vertical milling attachment having a spindle operable simultaneously with the horizontal spindle withoutin any a'y interfering with the action of the latter.

Another object is to provide for complete adjustment of the vertical spindle in the attachment independent of the adjustment of the work and the horizontal spindle relative to each other. Y

Another object is to provide an attachment which may be readily and quickly mounted on a milling machine in place of the ordinary overarm.

Another object is to rovide a connection between the vertical spindle andthe sour'ce of power, said connection being established `by simply putting the attachment in place and not interfering with the power drive to the horizontal spindle.

Another object is to provide convenient- Vmeans for independent adjustment .of the position of the vertical spindle.

In the accompanying drawings- Fi re 1 is a side elevation of a milling machine showing, the application of one form of my improved milling attachment Fig. 2 is a front elevation of .the

Same machine. Fig. 3 is a side view of the attachment partly broken away to :show the power transmission. Fig. 4 is a section on line 4 4 of Fig. 3. Fig. 5 is a side elevation of a milling machine showing a modilied form of my improved attachment. Fig.

-6I is a fragmental front end elevation of the same machine. Fig. 7 is a side View of the modified attachment broken away to show the power transmission FigY F? is a sec'- tional view on line 8 8 of Fig. 7. and Fig. 9 is a fragmental view showingr the gearing for adjusting the longitudinal position of the attachment.

In the drawings. 1 indicates a suitable base1 2 a main vertical column. 3 a knee ver tically adjustable on the column 2, 4 a saddle i Specification of Letters Patent.

Patented Ang. 15, 1922.

serial No. 294,512.

l.ofdescription thereof lare deemed unneces sary. The column 2 (see Fig. 4) carries the usual horizontally driven spindle 6 adapted `to carry a suitable cutting tool, and contains a U-shaped slot or groove 2 in which the arm 7 is mounted and held in place by suitable bolts 10 and 11. As will be evident from the drawings, the slot or groove 2 extends the full depth (i. e., from front to rear) of the column` and opens upon the upper end of the column. A pinion 8 on the spindle 6 meshes with a gear 9 which drives a pinion 416 on the horizontal shaft 17 mounted in suitable bearings in the arm 7. Vertical spindle 12 receives power through beveled gear 13 meshingr with beveled gear 14 on the other end of shaft 17.. A detachable cover 15 permits ready access to the gears 13 and 14. for adjustment. The spindles 6 and 12 are each adapted to receive a suitable milling tool (not shownl. The cutters mounted in the spindle ordinarily comprise an arbor. a cutting tool. and rings adjustingr the 'position of the cutting tool on the arbor. An approximate adjustment of the tools can thus. be obtained and then exact adjustment of the cut taken by the vertical and hori zontalspindles may be made bv adjusting 'the work on the table 5. It will he seen that by removing bolts 10 and 11 the arm 7 and vertical spindle which it carries may be removed for the substitution of a different at tachment or an ordinary overarm.

In a. less expensive grade of machine the 4arm 7 may obviously be integrallv attached i 56 1n the lower u complete tuerca [ter a wfupletr 25 to receive and also carries a rod 22 by beveled having a square projecting end a crank. A knurled disc on the shaft 24 is ver;Y convenient 'for making small adjustments ol the position of the arm 18 quickly, without stopping to get a crank. Y

A horizontal poiver shaft :26 is carried bv the arm 1S and power is transmitted thereto b v the pinion 2T splined to rotate with the sertie but 4free to slide thereon throughout the length of the elongated keyivay 28. A gear 29 receives power from the pinion 30 on the spindle t3. The gearl 29 is suitablyY confined between the Wall of the column 2 an. :i collar 31. Annuler plates 32 lattached tothe iaces of the gear orm a shroud tor the gear teeth and engage the teeth ofpinion 2 maintaining it in mesh ivith the gear 29 during sliding;r movement ot' the firm iti and shaft 26, l q i yIfhe lvertical spindle 33 is provided with suitable adjusting means. :is shownI` la cas- 35 encloses an adjusting screwv held from axial movement liv colllaisl'r". verticallyl slidablc sleevet carries u plate 39 'airing `a projecting boss I40 engaging: the screu S6. The spindle 33 carries collars ll and 42 forcing the spindle to move `with the sleeve 38. `he lcasingr lf? is split at 52 to term a. springclamp. A suitable screwl 55% engages lugs 54 proiecting from said casingr and clamps sleeve 39 in adjustedlgpositilon. A suitable collar at the bottom of the casing 35 carriesia scale 43 for convenient measure ment ofthe vertical adjustment of the spinelle l similar scale 55a; see Fig. 9. mayr be used to measure the horizontal adjustment., Power is trans iitted to the spin?, le 3:3,.thr0u vh .the beveled1 gears 14 a nd 45. tie verticazlrsiaft 46 and the spur ,gears et and F.The spindle 38 terminates in an upfafrcllyl extendingr slotted shaft 49 slidable `irouglrthe gear 4S but splinei to it for rotaryA motion. A suitable casi-ng- 50 encloses the A,fears 4T and 48. Gears t7 und 48 are readilyv accessible by removal ot the easing 50, and niav be readily replaced bv othersets of gears to var v the speed of the spindle 33. stationaryY Sleeve .31 forms a guide'. ,keeping shaft 19,rigidlv iu alignm nt as it'is` moved up and down by. vertical arjustmcnt of the spindle ,tn aperture tace of the arm iS permits easy access to `gears 44 and 4.3. and man' be closed bv a suitable plate. not shown.

lt should he noted that adjustment of the .Ii'cnce to spindle f3 ma) :n operation a work with ref liv obtained and adjustment of spindle tho work univ lic. madal ivitliout,;iIIb-Viering with the first adinetmeut. ThIv tools univ thcrel'ori. lie-sot to inacliinr nevel' less than two surfaces before .'jilvfith referencito the workman turns on the power. Where rabhets or .faces with adjoiningzshou ders are being cut, four surfaces may-be simultaneously macl ined and Where each cutter is milling a slot. six surfaces.

In both forms of my inventionthe corr neciion transmitting power to the vertical spindle, is 'utotft'cally disconnected by removing the attachmentr andsimilarlv reestablished by putting' the' attcliirievnt back in place. In the form shown in Fig. 7 it will of course be, necessary to slide pinion' 2T to position over gear 29, while th'e ar'rn is suspended over the column just before lfirverin'j the arm iirtb4 ositio'n.

claim as my intention:

l. .-l millinglmachine having', iti combination, a column, an adjustal'ile support for the Work. a livel spindle in id colu'rrujiA- an aih projecting from the ent of said column, a second likte spindleiiisxziicly arm and means including readily replaceable change sneed gears tot* se'cpnd spindle trom driving said A| la i said first mentionedspind v 2. A millin' imaclnne having, in combina trom a columr 2a meer-driven spindle'in .i w., l sald achab e arm, `a second column, a" de spindle in said annu-fa gear' in siii-'cV `cpl-` umn criven from poiveiudivenlsjindle, pinionsup )ortcd by sait andl rmovable thereniilh from the eoltiinin ai d connections toi; trivingitlie second spiiid e from said pinion, s'i lpinion beting adapted to mesh witlliissaidwgear"when sa firm is mountedin DbSiJo-nu'pQnsad column,

3. A mllingiiiachin having1 incoi'nbition a tixedil'ivespin lenit su'polrt or the worin saiefl sg'iprt beine iidjus ab y sidaible in each o til ee r'niitiiaflyperpeii iula'r directions, and 1a second livespindeperpen- 105 dicular to ,saidi t spnllel. said second spindle lie-ing ipo 'able in a irectionrparellel to said first spin. le back. o a position abone the'end of said fisthspndle- 4. inillingfmac ine liavinghin conbinaf tionfa. columnyaliired live spindle luisa-id column, a siipportfor the Work,` said s .pp ort being adjustebly slidablein ach o three` mutually perpendicular direc Iions, and a second live spindle adjustabl u slidable in each ot tvvo mutually perpen ieu ar directions and capable of use simultaneousl)r with said first s Lndle 5. A mil ing machine having, in combina tion, two mutuallyY perpendicular live spinA illes. one of saidspindles being adjustably slidable in each-ot two mutually perpend'cular direi-tions and the other of said spin les heini; fixed. and awsupport for the work, adjustably slidable in each ot three mutually perpendicular directions. 4 u

(l. milling` macl'linehaving, in combination, a` column, a spindle, in said co umn1 a sli'dalfijiV mounted overhanginfg arm on said columnJ a shaft in said arm parallel to its direction of sliding, a pinion splined upon and slidable along said shaft, a shrouded gear in Said column engaging said pinion, said gear being adapted to slide said pinion on its shaft and maintain engagement therewith during sliding motion of said arm.

7. A milling machine having, in combination, a column, a fixed spindle in said column, a slidable arm on said column, a spindle in said slidable arm mounted for sliding motion at right angles to the motion of said slidable arm, and powendriven means for driving both of said spindles.

8. A milling machine having, in combination, a column, an adjustable support for the work, an arm projecting from said column over said support, a vertically adjustable spindle carried by said arm, and a power transmission to said spindle including a pair of readily replaceable gears.

9. A milling machine having, in combination, a column, an adjustable support for the work, an arm projecting from said column over said work sup-port, a vertically adjustable s indle carried by said arm, a gear splin to said spindle and resting on top of said arm, and a gear meshing with said first mentioned gear, said gears being readily removable and replaceable.

10. A milling machine having, in comb-ination, a column, a U-shaped slot in said column, and an arm mounted in said slot and longitudinally slidable therein, said arm being removable from said slot by upward motion.

11. A milling machine having, in combination, a column, a work support on the column, said column having in its upper end a groove which opens upon the upper end of the column, an arm removably mounted in the groove, one end of said arm overhanging the work support, a vertical spindle in said overhan ing end, and means for driving said spin le.

12. A milling machine having, in combination, a column, a work support on the column, said column having in its upper end a groove which opens upon the upper end of the column, an arm removably mounted in the groove, one end of said arm overhangin the work support, a vertical spindle in said overhanginfr end, a driving gear in the. upper part of the column, and a gear supported by said arm in mesh with the first r, the second gear being connected to drive the spindle.

In testimony whereof, I have hereunto set my hand.

GUSTAF DAVID SUNDSTRAND. 

